Onshape is a professional CAD system – Parts, Assemblies, Drawings – with version control and collaboration built in. Each Onshape plan (Free for STUDENTS, Professional & Enterprise) gives you all of the CAD and data management functionality with no time limit. - Onshape is the first full-cloud 3D CAD system. It runs in a web browser and on any mobile device. - Onshape uses cloud-native Documents, not files.
- Fully cross platform parametric cad solution which runs in the browser. Includes any OS which can run a modern browser, including BSD, Linux, OS X, Android, and more. Not open source. Not free. But some of us need a professional-level solution regardless of those ideals.
- It's free (fully functional) , multiplatform (even on mobiles)
- It's just like Solidworks, near same terminology, icons, placement, etc. Not to mention it's free (for the most basic version) and on the cloud.